I'm not sure if this is the problem, there seems to be many different causes. Click on Start, Run, type msconfig, then click ok. select the startup tab, then scroll through the list to see if there is an entry for dit.exe. If you find it, uncheck the checkbox, click apply, then exit from the dialog box. Restart windows and see if the problem is resolved.

If this item is not in the list, then there may have been a problem with the uninstallation of norton antivirus software. For some reason, in the computers that the problem occurs, Norton was not able to uninstall fully. The problem also seems to occur after updates are installed from windows update.

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This is not a popup, it's an warning message from Windows that it has encountered a reading problem on your disk - a file is corrupted or missing.Since this is a non-descript error message finding what file is corrupted will be extremely difficult. Unless you are willing to lose a few days troubleshooting your Windows at a basic/file level the best way to deal with it is to save your personal files and reinstall - it will be way easier and faster.

There may be any number of storage device faults causing the no disk exception error message. For instance, a usb device may have been removed without choosing the 'safely remove hardware' option. If that's the case then reconnect the usb device and choose 'safely remove hardware' (bottom right hand corner of your PC screen), and then remove the USB device.

If the error message still comes up then try using the device manager in the windows control panel like this:

•Opening the Control PanelThe Windows Control Panel can be opened by:Selecting *Start > Control Panel (on Windows Vista)- OR -Start > Run > Type 'Control' and select OK (on Windows XP)

In the Control Panel, do the following:•Select System•Select the Hardware tab•Select Device Manager•Look for disk drives or other drives that are not used or recognized...•Right click the device(s) and select uninstall

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This problem seems to be caused either by malware (virus or spyware etc), or by software following a Windows update or some other software installation or uninstallation (particularly HP, Norton or QuickTime software) trying to check for removable media that isn't there (e.g. disc in DVD drive or card in card reader), when it shouldn't be doing that check.Please try these steps: scan your computer with a virus checker and anti-spyware etc, clean any infections and reboot if that doesn't work, try changing your drive letter assignments (you can refer it from Microsoft Help instructions), if that doesn't work, try uninstalling your floppy drive or just always keep media in all your drives, though the next two steps are preferable if they work, then try making your software stop looking for drives: e.g. uninstalling and reinstalling an upgraded (or latest possible) version of QuickTime; similarly with your Norton and HP software if you have any, and clearing your most recently used documents or files lists. best regards5.

"UPDATE - summary added, history moved to end: This problem seems to be caused either by malware (virus or spyware etc), or by software following a Windows update or some other software installation or uninstallation (particularly HP, Norton or QuickTime software) trying to check for removable media that isn't there (e.g. disc in DVD drive or card in card reader), when it shouldn't be doing that check." source: http://www.consumingexperience.com/2007/11/windows-no-disk-exception-processing.html
another tip try running "search and destroy"

Unless you "GHOST" or "CLONE" the programsd over to the harddrive, instead of just copy and paste, they will not open. What you will have to do mo0re than likely is remove the installation files through control panel and reinstall the program onto the external harddrive.